package com.atguigu.eduservice.controller;


import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduTeacherService;
import com.atguigu.commonutils.R;
import com.atguigu.servicebase.exceptionhandler.GuliException;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author testjava
 * @since 2022-01-11
 */

//@CrossOrigin //解决跨域问题
@Api(description = "讲师管理")
@RestController
@RequestMapping("/eduservice/edu-teacher")
public class EduTeacherController {

    //访问地址：http://localhost:8001/eduservice/edu-teacher/findAll

    //把service注入
    @Autowired
    private EduTeacherService eduTeacherService;

    //1.查询讲师表所有数据

    //rest风格
    @ApiOperation(value = "所有讲师列表")
    @GetMapping("findAll")
    public R findAllTeacher(){
        List<EduTeacher> list = eduTeacherService.list(null);
        return R.ok().data("items",list);
    }

    //2.逻辑删除讲师的方法
    @ApiOperation(value = "逻辑删除讲师")
    @DeleteMapping("{id}")
    //@PathVariable此注解为 需要在路径中进行传值     如http:xxxxxxx:xxxxxxx /id=?
    public R removeTeacher(@ApiParam(name = "id", value = "讲师ID", required = true) @PathVariable String id){
        boolean b = eduTeacherService.removeById(id);
        if (b)
        {
            return R.ok();
        }
        else
        {
            return R.error();
        }
    }



    //3.分页查询讲师的方法
    @ApiOperation(value = "讲师分页")
    //current 当前页
    //limit  每页记录数
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,@PathVariable long limit){


        try {

        }catch (Exception e) {
            //执行自定义异常
            throw new GuliException(20001,"执行了自定义异常处理...");
        }
        // 创建page对象
        Page<EduTeacher> pageTeacher =new Page<>(current,limit);
        //调用方法实现分页
        //调用方法的时候，底层封装，把分页所有数据封装到pageTeacher对象里面
        eduTeacherService.page(pageTeacher,null);
        long total = pageTeacher.getTotal();                //总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合

        return R.ok().data("total",total).data("rows",records);
    }


    //4.条件查询带分页的方法
    @ApiOperation(value = "条件查询带分页的方法")
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current, @PathVariable long limit,
                                  @RequestBody(required = false) TeacherQuery teacherQuery){  //required = false表示此对象可以不用传入
        //创建Page对象
        Page<EduTeacher> pageTeacher=new Page<>(current,limit);

        //构建条件
        QueryWrapper<EduTeacher> wrapper =new QueryWrapper<>();
        //多条件组合查询
        //mybatis 学过动态sql

        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        //判断条件值是否为空，如果不为空拼接条件
        if (!StringUtils.isEmpty(name)){
            //构建条件
            wrapper.like("name",name);
        }

        if (!StringUtils.isEmpty(level)){
            //构建条件
            wrapper.eq("level",level);
        }

        if (!StringUtils.isEmpty(begin)){
            //构建条件
            wrapper.ge("gmt_create",begin);
        }

        if (!StringUtils.isEmpty(end)){
            //构建条件
            wrapper.le("gmt_modified",end);
        }

        //排序,根据创建时间排序
        wrapper.orderByDesc("gmt_create");
        //调用方法实现分页条件查询

        eduTeacherService.page(pageTeacher,wrapper);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();
        return R.ok().data("total",total).data("rows",records);


    }

    //5.添加讲师的接口方法
    @ApiOperation(value = "添加讲师的接口方法")
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher){

        boolean save = eduTeacherService.save(eduTeacher);
        if (save)
        {
            return R.ok();
        }
        else
        {
            return R.error();
        }
    }

    //6.根据讲师ID进行查询
    @ApiOperation(value = "根据讲师ID进行查询")
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id){
        EduTeacher eduTeacher = eduTeacherService.getById(id);
        return R.ok().data("SelectTeacher",eduTeacher);


    }

    //7.修改讲师功能
    @PostMapping("updateTeacher")
    @ApiOperation(value = "修改讲师功能")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher){

        boolean b = eduTeacherService.updateById(eduTeacher);
        if(b)
        {
            return R.ok();
        }
        else
        {
            return R.error();
        }
    }
}


